| Peter Oberparleiter | 23f6268 | 2008-07-14 09:58:52 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Functions for incremental construction of fcx enabled I/O control blocks. |
| 3 | * |
| 4 | * Copyright IBM Corp. 2008 |
| 5 | * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> |
| 6 | */ |
| 7 | |
| 8 | #ifndef _ASM_S390_ITCW_H |
| David Howells | 87d2f5e | 2011-12-13 09:26:45 +0000 | [diff] [blame] | 9 | #define _ASM_S390_ITCW_H |
| Peter Oberparleiter | 23f6268 | 2008-07-14 09:58:52 +0200 | [diff] [blame] | 10 | |
| 11 | #include <linux/types.h> |
| 12 | #include <asm/fcx.h> |
| 13 | |
| 14 | #define ITCW_OP_READ 0 |
| 15 | #define ITCW_OP_WRITE 1 |
| 16 | |
| 17 | struct itcw; |
| 18 | |
| 19 | struct tcw *itcw_get_tcw(struct itcw *itcw); |
| 20 | size_t itcw_calc_size(int intrg, int max_tidaws, int intrg_max_tidaws); |
| 21 | struct itcw *itcw_init(void *buffer, size_t size, int op, int intrg, |
| 22 | int max_tidaws, int intrg_max_tidaws); |
| 23 | struct dcw *itcw_add_dcw(struct itcw *itcw, u8 cmd, u8 flags, void *cd, |
| 24 | u8 cd_count, u32 count); |
| 25 | struct tidaw *itcw_add_tidaw(struct itcw *itcw, u8 flags, void *addr, |
| 26 | u32 count); |
| 27 | void itcw_set_data(struct itcw *itcw, void *addr, int use_tidal); |
| 28 | void itcw_finalize(struct itcw *itcw); |
| 29 | |
| 30 | #endif /* _ASM_S390_ITCW_H */ |